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Mark Williams hails from Ontario, Canada, and made the long haul to Atco Raceway in search of his first 8-second timeslip. Williams was chasing a unique unofficial record for a Mustang with a legit Tremec TKO-600. As far as we can tell, the quickest run is an 8.99 by Mark Lutton. Williams rows the gears of a street box, but it’s modified to be Pro-shifted. Under the hood is a 337ci engine with AFR heads and an Induction Solutions direct-port, single-stage nitrous system. He ran 9.05 at only 141 mph as the car veered to the centerline on the top end, forcing him to lift early.